FAQ

1. Key words

key words	full words	info
RTC	Real-Time Communication	RTC system scenes: conference/live-broadcasting/voip..
Signal	Signal server	support signal logic
Room	Room server	support room logic
ISLB	Intelligent server load balancing server	support node-discovery/load-bancing..
SFU	Selective Forwarding Unit	broadcasting media streams
AVP	Audio video process server	Video Recoder/Audio Video Mixer/ AI Processor
MCU	Multipoint Control Unit	Audio Video Mixer and broadcasting

2. WebRTC sites

sites	info
WebRTC For The Curious	https://webrtcforthecurious.com	WebRTC For The Curious is an Open Source book written for those that are always looking for more
webrtc.org	https://webrtc.org	webrtc website
webrtc samples	https://webrtc.github.io/samples	webrtc demos
pion-webrtc	https://github.com/pion/webrtc	golang webrtc statck
ion	https://github.com/pion/ion	distributed rtc system

3. How to develop

• Start from the quick start page
• Learn Golang/WebRTC/SFU/Docker/GRPC/Nats/Redis if you are a backend developer
• Learn NodeJS/NPM/JS/TS if you are a frontend developer
• Learn Flutter/Android/iOS if you are a mobile/pc app developer
• Learn above all if you are full-stack developer

4. How script works

• scripts follow these steps:
  • build modules from source
  • start them by nohup and save pid to file
• stop scripts follow these steps:
  • find pid from pid file
  • kill process by pid

5. Docker build blocked

Try add a goproxy in Dockerfile, example:

RUN GOPROXY="https://goproxy.io" CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o /biz .

6. "Process already started" when using scripts

That means the process didn't closed in right way, you shoud kill it by hand. use ps -ef|grep -E "islb|biz|sfu|avp" to see which one is alive

7. How to deploy behind a nat?

Two ways:

1. set stun server in sfu.toml

[[webrtc.iceserver]]
urls = ["stun:stun.stunprotocol.org:3478"]

2. set nat1to1 in sfu.toml if you mapped WAN_IP to LAN_IP

[webrtc.candidates]
nat1to1 = ["your_WAN_ip"]
icelite = true